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The COMSEC C3I-II TM is the first and only telephone line security device that can detect electronically isolated remote extension drawn loops; the most sophisticated, threatening and common type of electronic surveillance that other security devices cannot detect. Detect eavesdropping/wiretapping that previously had been undetectable. 

ATTENTION:  Catch sophisticated Computer Hackers, Foreign Government Agencies, Telco employee's, etc.


Once connected the COMSEC C^3I continuously reacts, detects and displays an electrical signature pattern of the slightest electrical changes in telephone line impedance which result from signaling and switching equipment, telephone lines and wiretapping equipment connecting and disconnecting on your telephone line. 8 3/4" L x 5 7/8" W x 1 3/4" H Weight: 2 1/4 Lb.. Warranty: 1 Year Warranty. de in USA

Detect Computer Hackers, Foreign Government Agencies, Telephone Company Employees, etc. manipulating the Telephone Company's Central Exchange switching equipment to intercept your Telephones, Fax and Computer dial-up communications.